This April 26, 2018 photo made available by the Orange County Sheriff's Office, Fla., shows Rocco Joseph Mantella under arrest. Police arrested Mantella after people at a park in Orlando, Fla., saw him kicking swans in the head. Mantella was arrested on a cruelty to animals charge.(Photo: Orange County Sheriff's Office via AP)

One witness claimed they observed Mantella practicing karate and kicking two swans in the head and then another in the backside.

The witness stated that the kicks were “as hard as possible”, which resulted in one swan collapsing to the ground. This witness claimed that Mantella also kicked a small duck that appeared to be sleeping.

Another witness claimed they saw Mantella purposely go after a swan to kick it. That witness also said that Mantella laughed after he noticed their reaction to the incident.

Mantella was arrested without incident at the park, which is known for its swans and swan-shaped paddle boats.

The arrest report states that officers searched the area for the swans that were attacked but couldn't find any.

He was charged with cruelty to animals — a felony — and booked into Orange County (Florida) Jail. He was no longer listed in jail on Wednesday, records show.

When reached by phone on Wednesday, the public defender's office in Orange County declined to comment on Mantella's background.

But Bloody Elbow detailed Manella's history with fighting sports. After wrestling at Indiana he tried his hand at mixed martial arts. In 2012, he won an amateur fight at XCC: Carnage in Philadelphia, according to Tapology. He was set to make his professional debut at Ring of Combat 39 in 2012 but it was canceled.

Indiana's 2001-2002 season lists a "Rocky Manella" as a freshman on the team. A subsequent story said that he started as a freshman at 157 pounds. He wasn't listed on future rosters.

A spokesman for the university said Mantella attended the school from fall 2001 to January 2003 but left without completing his degree.

The April arrest was his third run-in with the law in Orange County in a two-month span, Orange County court records show.

Three days before the swan incident, he was arrested and charged with trespassing at Disney Springs. In March, he was charged with attempted robbery and disorderly conduct after allegedly taking food from people's trays at a McDonald's before threatening to rob a couple in a nearby parking lot.

He was also arrested in Jacksonville for drinking beer at a beach and twice for huffing an aerosol can during the same two-month span, according to WFTV 9, the ABC affiliate in Orlando.